History 144 Land tenure 86 Motion picture plays, Spanish 67 Architecture 60 Arquitectura 57 urban and land use planning 50 Planificación urbana y uso de las tierras 36 more ... Politics and government 36 History and criticism 34 Land reform 32 Tenencia de la tierra 32 Land use 31 Historia 30 Criticism and interpretation 27 Law and legislation 27 Motion picture plays 25 Man-woman relationships 23 Social aspects 22 Social conditions 20 Economic conditions 16 Law 16 Philosophy 16 Derecho 15 Indians of South America 15 Planificación urbana y de uso de las tierras 14 Storyboards 14 Women 14 Mexican Americans 13 Reforma agraria 13 Study and teaching 13 less ...